Process of making signs



June 18. 1929.

A. SCHWARZ PROCESS 0F MAKING SIGNS Filed May 26, 1926 IN VEN TOR. WSJ BY @am /Y/ A TTORNE Y.

- y 1,717,138 PATENT OFFICE.

'ALBERT SCHWARZ, or cININNATI, omo.r

I PROCESS F 'MAKING SIGNS.

i Application filedy 'May 26,

My invention relates broadly to processes of making signs, and particularly to processes of making transparent signs.

It is the object of my invention to make al- 6 transparent sign, which shall consist in a backing member, having an opaque coating thereonwhich shall have uncoated portions, through which a light will be visible. It is further my object to make such a sign in a novel manner which not only enables me to make a sign.l1aving a neat appearance, but also, which can be very inexpensively made.

Referring to the drawings inwhich I have illustrated a preferred type of sign in which the several figures illustrate the steps in the process of manufacture Figure -1 is a front elevation of the sign enclosed in a frame.

y Figure 2 is a perspective view of a portion of the flexible backing sheet from which the sign is made. 1

Figure 3 is a front elevation of the backing sheet, after the application of the layer of paint.

Figure 4 is a front elevation of a portion of the finished sign transparency.

Figure 5 is a perspective view showing the transparency enclosed in an illuminative caslng.

Figure 6 is a section taken along the lines `6 6 in Figure 1. s

I prefer to use as a backing sheet, a web of resilient transparent material such as isindicated at l in Figure 2. The material illustrated, is known in the trade as cello-glass, and consists of a web of wire screen to which has been applied a coating 2, of some trans-4 parent material such as Celluloid.

Although cell-o-glass forms a very desirable backing sheet because the wire of the screening provides a flexible and very strong support for the transparent filler of celluloid, other suitable materials which have similar functions may also be used with satisfactory results.

The flexible sheet of backing is then painted with a coat 3 ofsuitable paint, which covers the backing, in a thin transparent layer. through which selected areas may be revealed. The paint is then allowed to dry, and the sheet or web is then printed with a solid layer 4 of paint, preferably from arcuate soft composition roller, having recesses therein, which outline the various figures or marks `which are to be displayed. In the illustrations, letters (are 'the illuminative objects 192e. serial no. 111,871.l

vwhich are to be displayed.I I`n the portions `outlined-by the recesses in the die,'tl1e paint coating, which as has been noted, has been allowed to dry, will have a glossy unadhesive surface. While the paint is still wet, a layer. 5 of finely divided powder, such as granulated smalt1 or block of any desired color, is sprinkled or dusted on, and the coating of the powdered material will adhere to the background part of the sign and form a permanent background through which the rays of light will not shine with' the same intensity .as through the dried areas, o which noneof the granulated material has adhered.

After the outer coating ofgranulated material has thoroughly dried into the paint, the flexible sheet may be bound in a frame such as is indicated at 6, and electric light globes or other sources ofv illumination may be arranged so as to shine through the letters or figures.

rIhe use of a flexible sheet is particularly desirable because it will feed through rollers so that the sheets may be wound on a spool and then fed between rollers in a rotary press. This enables signs, such`Y as disclosed, to be made in a continuous web which greatly reduces the cost of decorating.

While signs made in accordance with my invention are particularly adapted for illuminative use, the signs even without sources of light behind the transparency are brilliant and set out the advertising matter displayed in a ver attractive manner.

Modi cations in which different materials and different colors other than those particu- Iarly specified are employed, are within the scope of my invention. While I have shown a sign for purposes of illustration, which has the advertising matter outlined in a positive manner, it will also be within the scope of my invention to use the invention in what may be called a negative manner, in which the background will be transparent and illuminated, and the letters or marks will be covered with the coating of granular or powdered material. t

Having thus described my invention what I claim as new aid desire to secureby letters patent is 4 l. A process for making transparencies which consists in filling themeshes of a wire cloth sheet with translucent material, coating the filled sheet of wire cloth with a translucent pigmented body of cellulose character, when the said coating is dry printing the sheet with a second pigmented coatingin desired areas to lrfive the desired visual impression, and

fina 1y, while the second coating is tacky, ap-

plying thereto an opaque powder which does 5 not adhere to the first coating, for the purpose described. y

2. `A process for printing on wire cloth which consists in imposin on the wire cloth a pigmented coating whic covers the wires and the spaces between them and is translu- 10- cent, and then. prntin after the first coat-v ing is dry, a pi mente pattern coat which is then dusted wit an o aque powder.

` AL ERT SCHWARZ. 

